Imprinting a complete information about a quantum channel on its output state
arXiv:quant-ph/0211133 · doi:10.1103/PhysRevLett.91.047902
Abstract
We introduce a novel property of bipartite quantum states, which we call "faithfulness", and we say that a state is faithful when acting with a channel on one of the two quantum systems, the output state carries a complete information about the channel. The concept of faithfulness can also be extended to sets of states, when the output states patched together carry a complete imprinting of the channel.
revtex4, 4 pages, submitted to PRL
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